Chair seat and back



FIG. 1 is a perspective view of the chair seat and back of the present invention; features shown in phantom or broken lines are not considered to be part of the invention.

FIG. 2 is a front elevation view of the design.

FIG. 3 is a back elevation view of the design.

FIG. 4 is a left side elevation view of the design; the right side elevation view is a mirror image of the left side elevation view.

FIG. 5 is a bottom view of the design; and,

FIG. 6 is a top view of the design. 

The ornamental design for a chair seat and back, as shown and described. 